#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
    char ch = 0;
    while (scanf("%c", &ch) != EOF)
    {
        getchar();  g
            if (ch == 'a' || ch == 'A' || ch == 'e' || ch == 'E' || ch == 'O' || ch == 'o' || ch == 'i' || ch == 'I' || ch == 'U' || ch == 'u')
                printf("Vowel\n");
            else
                printf("Consonant\n");
    }

    return 0;
}
